Axial flux motor

Abstract

An axial flux motor includes a rotor assembly and a stator assembly. The rotor assembly has magnets. The stator assembly has a circuit substrate, segmented iron cores, and a coil. The circuit substrate extends radially. The segmented iron cores are supported on the circuit substrate to be opposite to the magnet in the axial direction. Segmented iron cores arranged in the circumferential direction. A coil is sleeved on a segmented iron core. Holding seats of an insulating material correspond respectively to the segmented iron cores. A holding seat abuts with and covers a segmented iron core from both axial sides and the circumferential direction, and is used for winding the coil. The circuit substrate has slot holes. A slot hole is used for embedding and positioning a portion of a holding seat that protrudes more towards one axial side than the coil.

What is claimed is: 
     
         1 . An axial flux motor, comprising:
 a rotor assembly and a stator assembly,   the rotor assembly has a magnet, the stator assembly has a circuit substrate, segmented iron cores, and coils, the circuit substrate extends radially, the segmented iron cores are supported on the circuit substrate in a manner to be opposite to the magnet in an axial direction, and there are a plurality of the segmented iron cores arranged in a circumferential direction, a coil is sleeved on a segmented iron core, wherein   there are a plurality of holding seats made of an insulating material corresponding respectively to the plurality of segmented iron cores, a holding seat abuts with and covers the segmented iron core from both axial sides and the circumferential direction, and is used for winding the coil,   the circuit substrate has slot holes, a slot hole is used for embedding and positioning a portion of the holding seat that protrudes more towards one axial side than the coil, wherein:   the holding seat has an accommodating chamber, which is used for insertion of the segmented iron core from a radially outer side to a radially inner side.   
     
     
         2 . The axial flux motor according to  claim 1 , wherein:
 a peripheral edge of the slot hole abuts with the holding seat from one side in the axial direction, and   an inner wall surface of the slot hole abuts with the holding seat in the radial and circumferential directions, respectively.   
     
     
         3 . The axial flux motor according to  claim 1 , wherein:
 the holding seat has an abutting portion that abuts with the segmented iron core from the radially inner side.   
     
     
         4 . The axial flux motor according to  claim 3 , wherein:
 the holding seat has an elastic snap-fit that abuts with the segmented iron core from the radially outer side.   
     
     
         5 . The axial flux motor according to  claim 4 , wherein:
 the holding seat has a bottom plate, a top plate, and side plates that surround to form the accommodating chamber,   the bottom plate abuts with and covers the segmented iron core from the one side in the axial direction, and abuts with the circuit substrate from the other side in the axial direction,   the top plate abuts and covers the segmented iron core from the other side in the axial direction,   the side plates connect the top plate with the bottom plate, and abut with the segmented iron core from both sides in the circumferential direction.   
     
     
         6 . The axial flux motor according to  claim 5 , wherein:
 the top plate and/or the bottom plate is provided with an abutting portion that abuts with the segmented iron core from the radially inner side.   
     
     
         7 . The axial flux motor according to  claim 5 , wherein:
 the holding seat has a boss portion that protrudes from the bottom plate and is embedded into the slot hole,   a portion of the bottom plate connected to the boss portion abuts with the peripheral edge of the slot hole from the other side in the axial direction.   
     
     
         8 . The axial flux motor according to  claim 1 , wherein:
 the inner wall surface of the slot hole is provided with a first engaging portion and a second engaging portion opposite to the first engaging portion in a first direction,   the portion of the holding seat embedded into the slot hole has a first engaged portion that engages with the first engaging portion and a second engaged portion that engages with the second engaging portion.   
     
     
         9 . The axial flux motor according to  claim 8 , wherein:
 a gap is formed between the portion of the holding seat embedded into the slot hole and the inner wall surface of the slot hole in a second direction perpendicular to the first direction.